`\text{1. }`He used to play basketball every day

`\text{2. }`You didn't use to read books

`\text{3. }`I used to live in the city

`\text{4. }`Did she use to recycle rubbish?

`\text{5. }`Did we use to take the bus to the supermarket?

`\text{6. }`They used to walk to school

`\text{7. }`You didn't use to study hard

- Cấu trúc "used to+ V(inf)": Diễn tả hành động thường làm trong quá khứ nhưng giờ không còn làm nữa.

(+) S+ used to+ V(inf)

(-) S+ didn't use to+ V(inf)

(?) Did+ S+ use to+ V(inf)?

Yes, S+ did

No, S+ didn't

`\text{# Themoonstarhk}`

`2` He used to play basketball every day

`3` You didn't use to read books

`4` I used to live in city

`5` Did she use to recycle rubbish?

`6` Did you used to take the bus to the supermaket ? 

`7` They used to walk to school

`8` You didn't use to study hard

* Cấu trúc used to (đã từng)

+) S + used to + V nguyên + O 

-) S + didn't + use to + V nguyên + O 

?) Did + S + use to + V nguyên + O ? 

* Cách dùng : Diễn tả thói quen xảy ra trong quá khứ nhưng nay đã hoàn toàn chấm dứt , không xảy ra nữa.

* Cấu trúc thì Quá Khứ Đơn (Động từ thường)

+) S + Ved/V2 + O (use -> used )

-) S + didn't + V nguyên + O 

?) Did + S + V nguyên + O ?